Smartphone-Based Automated Non-Destructive Testing Devices

Abstract

Currently, non-destructive testing is an interdisciplinary field of science and technology that serves to ensure the safe functioning of complex technical systems in the face of multifactorial risks. In this regard, there is a need to consider new information technologies based on intellectual perception, recognition technology, and general network integration. The purpose of this work was to develop an ultrasonic flaw detector, which uses a smartphone to process the test results, as well as transfer them directly to an powerful information processing center, or to a cloud storage to share operational information with specialists from anywhere in the world.The proposed flaw detector consists of a sensor unit and a smartphone. The exchange of information between the sensor and the smartphone takes place using wireless networks that use "bluetooth" technology. To ensure the operation of the smartphone in the ultrasonic flaw detector mode, the smartphone has software installed that runs in the Android operating system and implements the proposed algorithm of the device, and can serve as a repeater for processing data over a considerable distance (up to hundreds and thousands of kilometers) if it necessary.The experimental data comparative analysis of the developed device with the Einstein-II flaw detector from Modsonic (India) and the TS-2028H+ flaw detector from Tru-Test (New Zealand) showed that the proposed device is not inferior to them in terms of such characteristics as the range of measured thicknesses, the relative error in determining the depth defect and the object thickness. When measuring small thicknesses from 5 to 10 mm, the proposed device even surpasses them, providing a relative measurement error of the order of 1 %, while analogues give this error within 2–3 %.

Using the Pulsed Eddy Current Techniques for Monitoring the Aircraft Structure Condition

“…According to this the realisation of the eddy current inspection in hard-to-reach places becomes a particularly important task. the problem could be solved by using wireless technologies for the transmission of eCP signals from the probe's unit to the data processing unit [10,11]. It allows to spatially separate the probes part and the signal processing unit, and it greatly simplifies the practical implementation of the inspection of large-size aircraft assemblies or units with limited access to them.…”

Automated Eddy Current System for Aircraft Structure Inspection

“…Such an approach allows a more complete analysis of the TO elements condition according to the informative parameters that are characteristic of each of the excitation modes of the probes. The previously obtained results of research and development of a wireless eddy current testing system with the pulse mode of the ECP and signal processing algorithms allow us to propose a generalised scheme of the new system and a generalised method of processing and displaying information that may be suitable for use in systems for monitoring the condition of the large-sized objects [13][14][15].…”

Intelligent Automated Eddy Current System for Monitoring the Aircraft Structure Condition

“…According to this, eddy current inspection in hard-to-reach places becomes a particularly important task. The problem could be solved by using wireless technologies for transmitting ECP signals from the probe unit to the data processing unit [13,14,15]. It allows to spatially separate the probes part and the signal processing unit and it greatly simplifies the practical implementation of inspection large aircraft components or components with limited access to them.…”